Prolactin response to exercise,metoclopramide and other provocative agents in children |
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Authors: | K. Ijaiya |
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Affiliation: | (1) University Children's Hospital, University of Cologne, D-5000 Cologne 41, Federal Republic of Germany;(2) Present address: Department of Paediatrics, Ahmadu Bello, University Teaching Hospital, Kaduna, Nigeria |
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Abstract: | Metoclopramide (MCP), a derivative of procainamide was compared with exercise, arginine, insulin and thyrotropin releasing hormone (TRH) as a prolactin (PRL) releaser in children. The peak response of plasma PRL after oral administration of MCP was greater than that after strenuous exercise and after i.v. administration of pharmacodynamic agents. Normal PRL and TSH responses were observed after TRH administration in all subjects. Variable PRL responses were seen after exercise and after i.v. administration of arginine and insulin, despite significant growth hormone (GH) release following the administration of these agents. MCP produced no increase in plasma TSH. Metoclopramide may be useful for dynamic testing of PRL release in children. It can be taken orally and is free of side-effects. |
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Keywords: | Prolactin (PRL) Thyrotropin releasing hormone (TRH) Thyrold-stimulating hormone (TSH) Growth hormone (GH) Exercise Arginine Insulin Metoclopramide (MCP) |
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